Frequency converter

- Vacon Oyj
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Description

FIG. 1 is a perspective view of a frequency converter showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a left elevation view thereof, also being a mirror image of FIG. 4;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design.

Claims

The ornamental design for a frequency converter, as shown and described.

Referenced Cited
U.S. Patent Documents
4620263 October 28, 1986 Ito
D400182 October 27, 1998 Yamada
6249435 June 19, 2001 Vicente et al.
D455399 April 9, 2002 Imamura et al.
D468687 January 14, 2003 Hamada et al.
D502916 March 15, 2005 Higuchi et al.
D560607 January 29, 2008 Suematsu et al.
D560608 January 29, 2008 Dornauer et al.
D562234 February 19, 2008 Morihara et al.
D563316 March 4, 2008 Higuchi
Patent History
Patent number: D654022
Type: Grant
Filed: Oct 1, 2010
Date of Patent: Feb 14, 2012
Assignee: Vacon Oyj
Inventors: Lihua Sun (Suzhou), Mikko Kannisto (Riihimaki), Hans Carlsson (Voyri), Antti Vuola (Espoo)
Primary Examiner: Derrick Holland
Attorney: Holland & Hart LLP
Application Number: 29/376,152
Classifications